hello filled my tank up thursday morning the pipe was frozen from outside tap to van outlets so melted frozen water in hose pipe and started ti fill up tank waste started to come out and pure was being made so left it to fill tank went to work and found all pipes frozen inside van so did trad for the morning and van defrosted by afternoon so used my pure water at end of day i notised that the windows were not great but a lot spotty would this of happened because the filters were frozen when i filled up and they did not filter the water proper